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  • Clinical trials  (2)
  • laser Doppler flow  (2)
  • Clinical pharmacology  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Clinical pharmacology and clinical trials in Japan (1996)
    Springer
    Journal of molecular medicine 74 (1996), S. 479-486 
    Details
    ISSN: 1432-1440
    Keywords: Clinical pharmacology ; Clinical trials ; Drug development ; Drug therapeutics ; Informed consent
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Clinical pharmacology is the pursuit of rational therapeutics by following the scientific principles of medicine and pharmacology. In Japan the roles for clinical pharmacology and clinical pharmacologists have been evolving since the discipline appeared in the 1950s. Clinical pharmacology and clinical trials for drug development depend on each other, and clinical pharmacologists play an important role in drug development in Japan. As the discipline becomes more important and complicated, many issues regarding drug therapeutics and clinical trials in Japan have been raised, and several points of view have been expressed. The following suggestions have been made to improve clinical pharmacology in Japan: (a) Medical education in the field of clinical pharmacology must be improved by creating or improving clinical pharmacology programs in medical schools. (b) The appropriate infrastructure for clinical trials must be established so that the physicians' workload is reduced, and patients' participation in clinical trials becomes much easier. (c) Scientific and ethical standards of the pharmaceutical industry must be improved, and the effort should be made to produce drugs with new mechanisms of action or with significant expected benefits. (d) The regulatory agency must provide stronger support, encompassing all the various points of view of academic institutes and the pharmaceutical industry. In light of the enthusiasm demonstrated by the government, physicians, and pharmaceutical industry in Japan for continued progress in clinical pharmacology, it seems likely that all its challenges will be overcome in the near future. Hence, despite the various problems discussed here the future seems promising for the continued development of clinical pharmacology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00217525
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Effect of α1-adrenoceptor antagonists, prazosin and urapidil, on a finger skin vasoconstrictor response to cold stimulation (1996)
    Springer
    European journal of clinical pharmacology 49 (1996), S. 371-375 
    Details
    ISSN: 1432-1041
    Keywords: Key words Prazosin ; Urapidil; Vasoconstrictor response ; laser Doppler flow ; finger tip blood flow ; cold stimulation ; healthy volunteers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objectives: Cold stimulation causes a finger skin vasoconstrictor response, which is regulated by stimulation of α-adrenergic receptors and is reduced by administration of prazosin. The purpose of this study was to investigate, using a laser Doppler flowmeter, whether the decrease in the finger skin vasoconstrictor response to cold stimulation produced by administration of two different α1-adrenoceptor antagonists, prazosin and urapidil, was correlated with the corresponding plasma drug concentration, and whether this method could be used to evaluate the relative potency of these α1-adrenoceptor antagonists in human subjects. Method: In thirteen healthy male subjects (20–42 y), finger tip skin blood flow was measured during cold stimulation before and 1, 2, 3, 6, and 9 h after administration of placebo, prazosin (1 mg) or urapidil (60 mg). Results: Both prazosin and urapidil significantly decreased the vasoconstrictor response to cold stimulation. The degree of the decrement in the response indicated by the reduction ratio was significantly correlated with the plasma concentration of prazosin and urapidil. The α1-adrenoceptor blocking activity of prazosin estimated by the regression lines was about 130-times more potent than that of urapidil. Conclusion: These findings suggest that the cold stimulation response of finger skin vasoconstriction may be used to evaluate the relative α1-adrenoceptor blocking potency of drugs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002280050034
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Effect of α1-adrenoceptor antagonists, prazosin and urapidil, on a finger skin vasoconstrictor response to cold stimulation (1996)
    Springer
    European journal of clinical pharmacology 49 (1996), S. 371-375 
    Details
    ISSN: 1432-1041
    Keywords: Prazosin ; Urapidil ; Vasoconstrictor response ; laser Doppler flow ; finger tip blood flow ; cold stimulation ; healthy volunteers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objectives: Cold stimulation causes a finger skin vasoconstrictor response, which is regulated by stimulation of α-adrenergic receptors and is reduced by administration of prazosin. The purpose of this study was to investigate, using a laser Doppler flowmeter, whether the decrease in the finger skin vasoconstrictor response to cold stimulation produced by administration of two different α1-adrenoceptor antagonists, prazosin and urapidil, was correlated with the corresponding plasma drug concentration, and whether this method could be used to evaluate the relative potency of these α1-adrenoceptor antagonists in human subjects. Method: In thirteen healthy male subjects (20–42 y), finger tip skin blood flow was measured during cold stimulation before and 1, 2, 3, 6, and 9 h after administration of placebo, prazosin (1 mg) or urapidil (60 mg). Results: Both prazosin and urapidil significantly decreased the vasoconstrictor response to cold stimulation. The degree of the decrement in the response indicated by the reduction ratio was significantly correlated with the plasma concentration of prazosin and urapidil. The α1-adrenoceptor blocking activity of prazosin estimated by the regression lines was about 130-times more potent than that of urapidil. Conclusion: These findings suggest that the cold stimulation response of finger skin vasoconstriction may be used to evaluate the relative α1-adrenoceptor blocking potency of drugs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00203780
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Clinical pharmacology and clinical trials in Japan (1996)
    Springer
    Journal of molecular medicine 74 (1996), S. 479-486 
    Details
    ISSN: 1432-1440
    Keywords: Key words Clinical pharmacology ; Clinical trials ; Drug development ; Drug therapeutics ; Informed consent
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Clinical pharmacology is the pursuit of rational therapeutics by following the scientific principles of medicine and pharmacology. In Japan the roles for clinical pharmacology and clinical pharmacologists have been evolving since the discipline appeared in the 1950s. Clinical pharmacology and clinical trials for drug development depend on each other, and clinical pharmacologists play an important role in drug development in Japan. As the discipline becomes more important and complicated, many issues regarding drug therapeutics and clinical trials in Japan have been raised, and several points of view have been expressed. The following suggestions have been made to improve clinical pharmacology in Japan: (a) Medical education in the field of clinical pharmacology must be improved by creating or improving clinical pharmacology programs in medical schools. (b) The appropriate infrastructure for clinical trials must be established so that the physicians’ workload is reduced, and patients’ participation in clinical trials becomes much easier. (c) Scientific and ethical standards of the pharmaceutical industry must be improved, and the effort should be made to produce drugs with new mechanisms of action or with significant expected benefits. (d) The regulatory agency must provide stronger support, encompassing all the various points of view of academic institutes and the pharmaceutical industry. In light of the enthusiasm demonstrated by the government, physicians, and pharmaceutical industry in Japan for continued progress in clinical pharmacology, it seems likely that all its challenges will be overcome in the near future. Hence, despite the various problems discussed here the future seems promising for the continued development of clinical pharmacology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001090050050
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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